Nmap target specification

I tried to scan ports of a specific target (range of IP Addresses) but the result wasn’t relevant.
I didn’t receive the port state, service and Mac Address.

The result was only:

This is the command that i ran was: nmap -sS

The result for each host was:
Nmap scan report for "IP Address"
Host is up (0.00041s latency)
All 1000 scanned ports on “IP Address” are filtred (noting more).

Could you tell me why I didn’t receive more details?

Thanks in advance!

The flag that you set doesn’t do any service scan. It is just for TCP Syn scan. You can also try adding -A for OS info and -sV for service detection. Also try adding -p- for scanning all 65535 ports instead of just 1000.

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